-er c-- ccc cce ccl ccp ccr ccz ce- cec cee cel cep cer cez cl- clc cle cll clp clr clz cpc cpe cpl cpp cpr cpz crc cre crl crp crr crz cz- czc cze ec- ecc ece ecl ecr eec eee eel eep eer elc ele ell elp elr elz ep- epc epe epl epp epr epz erc ere erl erp err erz eze ezr ezz l-p lcc lce lcl lcp lcr lec lee lel lep ler lez llc lle lll llp llr llz lpc lpe lpl lpp lpr lpz lrc lrp lrr lrz lzr p-p pcc pce pcl pcp pcr pec pee pel pep per pez plc ple pll plp plr plz ppc ppe ppl ppp ppr ppz prc pre prl prp prr prz pzc pzl pzp rcc rce rcl rcp rcr re- rec ree rel rep rer rez rlc rle rll rlp rlr rpc rpe rpl rpp rpr rpz rrc rrl rrp rrr rze zce zcl zec zee zel zep zer zez zlr zpc zpe zpl zpp zpr zrl zrp zzr zzz